Quick Answer

A JSONL file can be opened in any text editor, but large files are easier to inspect with a line-aware viewer. JSONL Tools lets you upload a .jsonl, .json, or .txt file and browse one record at a time.

Open the JSONL viewer to inspect records, or use the JSONL validator if you need to check syntax first.

How to Open a JSONL File

1. Go to the JSONL viewer.
2. Select your JSONL, NDJSON, JSON, or text file.
3. Navigate through records without scanning the entire file manually.
4. If parsing fails, validate the file to find the exact broken line.

Related JSONL Tools

• JSONL Validator for syntax checks and line-level errors.
• JSONL to JSON Converter for converting records into a JSON array.
• JSONL to CSV Converter for spreadsheet workflows.